Two-dimensional transverse-magnetic time-domain scattering using the nyström method and bandlimited extrapolation

A method is presented for the solution of the integral equations that describe the electromagnetic scattering from an infinitely long conducting cylinder in the time domain. The method discretizes the integral equations spatially using a high-order locally-corrected Nystrom method and temporally usi...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2005-07, Vol.53 (7), p.2259-2266
Main Authors: WILDMAN, Raymond A, WEILE, Daniel S
Format: Article
Language:English
Subjects:
Applied sciences
Cylinders
Diffraction, scattering, reflection
Exact sciences and technology
Extrapolation
Filtering
Filtration
Integral equations
Kernels
Mathematical models
Radiocommunications
Radiowave propagation
Telecommunications
Telecommunications and information theory
Time marching
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Summary:A method is presented for the solution of the integral equations that describe the electromagnetic scattering from an infinitely long conducting cylinder in the time domain. The method discretizes the integral equations spatially using a high-order locally-corrected Nystrom method and temporally using a filtered kernel. The filtering of the kernel both controls aliasing and reduces the order of its singularity. On the other hand, filtering also gives rise to a noncausal kernel so the time marching is accomplished with a bandlimited extrapolation scheme. Numerical results demonstrate the stability and accuracy of the proposed method.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2005.850756